A Safety Data Sheet (SDS), previously known as Material Safety Data Sheet or MSDS, is a reference document that is prepared with information about a hazardous substance, including chemical and physical properties, handling and storage requirements, as well as exposure limits. The Office of Environmental Health and Safety does not maintain Safety Data Sheets (SDS) for the university. So each department or clinic must have a SDS for each chemical that is on the area's chemical inventory. Safety Data Sheets must be available to personnel at all times while they are in the workplace. Chemical manufacturers and distributors are required by law to furnish a SDS for product purchases. If you do not have a Safety Data Sheet for all hazardous substances, contact the manufacturer or use one of the links below. Environmental Health and Safety can assist if you are having difficulty obtaining Safety Data Sheets. For assistance with the deciphering the sections of the SDS's, refer to the Safety Data Sheet Guide .